Synthesis 2006(5): 0890-0891  
DOI: 10.1055/s-2006-926345
PSP
© Georg Thieme Verlag Stuttgart · New York

Convenient Titration Method for Organometallic Zinc, Magnesium, and Lanthanide­ Reagents

Arkady Krasovskiy, Paul Knochel*
Ludwig-Maximilians-Universität München, Department Chemie und Biochemie, Butenandtstrasse 5-13, Haus F, 81377 Munich, Germany
Fax: +49(89)218077680; e-Mail: paul.knochel@cup.uni-muenchen.de;
Further Information

Publication History

Received 23 December 2005
Publication Date:
23 February 2006 (online)

Abstract

A convenient and reliable procedure for the titration of various organometallic compounds, such as magnesium, zinc, and lanthanides by using 0.5 M THF solutions of LiCl as the titration medium has been developed.

    References

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8

It is possible to determine the concentration of most organolithium compounds using our procedure with the exception of some secondary and tertiary alkyl lithiums in which a facile elimination of HI from the alkyl iodide formed during titration is possible (for example s-BuLi and t-BuLi).